T

Tina Singh • 12.22K Points
Tutor II Physics

Q. What is radioactivity?

  • (A) Emission of light from hot objects
  • (B) Spontaneous emission of particles from unstable nuclei
  • (C) Absorption of radiation by atoms
  • (D) Production of energy by friction
  • Correct Answer - Option(B)
  • Views: 3
  • Filed under category Physics
Explanation by: Tina Singh
Radioactivity is the spontaneous disintegration of unstable atomic nuclei with emission of radiation.

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